Start Opera
From the “Tools” menu choose “Mail and Chat Accounts...”
Click of Yes
Choose "E-mail" as the new account type and click of Next>
Now enter the following information:
Real name (sender name): First name and surname (lower- and/or uppercase)
E-mail address: Your full e-mail address
Organization: -
Click of Next
Here you should type in your e-mail address (without @bluewin.ch) and type the Password
Now enter the following information:
Incoming server: pop.bluewin.ch
Outgoing server: smtpauth.bluewin.ch
Installation complete